User blog comment:Flia/Canon material/@comment-1512913-20111204193442

The posts of Sven and Snow (Capcom USA) indicates that everything not contradicting the games is canon. (These posts are old, might be hard to find it for reference, but possible to ask again) All books are to be considered (so far until a game disporoves it) partially canon.

Manga is again only partially canon. Most events and details are retconned by game and it was cancelled before being finished, There are some differences in japan and english script. Anime is said to be canon games sure are canon (except DmC which begins its own universe) Comics are non canon, its basically comic version of game.